Several of the posts have only partial answers about US taxes. For example, the $80,000 is pro-rated, so it might only be $40,000 if you are only here 183 days.
This foreign housing exclusion sounds interesting, anyone here use it?
Check out irs.gov/publications/p54/ch04.html
* Who qualifies for the foreign earned income exclusion, the foreign housing exclusion, and the foreign housing deduction,
* How to figure the foreign earned income exclusion, and
* How to figure the foreign housing exclusion and the foreign housing deduction.
If you meet certain requirements, you may qualify for the foreign earned income and foreign housing exclusions and the foreign housing deduction.
If you are a U.S. citizen or a resident alien of the United States and you live abroad, you are taxed on your worldwide income. However, you may qualify to exclude from income up to $80,000 of your foreign earnings. In addition, you can exclude or deduct certain foreign housing amounts. See Foreign Earned Income Exclusion and Foreign Housing Exclusion and Deduction, later.
You may also be entitled to exclude from income the value of meals and lodging provided to you by your employer.